Who knows. It's not what I expected. FYI here is the text I used: Dear Sir, Re: your letter dated 99th November, 2010. Reference 123456789 Thank you for your letter dated 99th November 2010. It seems that you have got my details from the DVLA and I confirm I am the keeper of the vehicle in question. I request that you take this matter up with the driver of the vehicle at the time in question. I absolutely deny your claim that the amount claimed, or any amount at all, is due to you from me. I note your comments about debt collectors. Given that this debt is in dispute I shall simply advise them that the debt is in dispute and they will have to refer back to you. Yours faithfully,

You might like to know that after sending a letter off to Athena ANPR contesting their outrageous parking "charge", composed using the helpful advice found here, I received a cancellation notice of the "charge" in the post. So that's at least £45 quid saved thanks to the contributors on this site. Thanks everyone. I hope this encourages others to fight back. Regards 'Big' Sim